Design of efficient algorithm for secured key exchange over Cloud Computing

Cloud computing framework is accepted by most of the enterprises. It provides on-demand service, broad network access, elasticity etc. But the usability of these characteristic get obstructed by many security challenges. As the cloud service user uploads their confidential data over the cloud platform, it must be transmitted in a secure way. For this, it should be transmitted through a protected communication channel. A practical solution to this is a Diffie-Hellman key exchange algorithm. It is used to exchange the cryptographical keys securely over the public channel. In this paper, the extended version of the Diffie-Hellman algorithm is suggested which can prevent the system against Mim attack and plain-text attack. This algorithm is oriented towards removing the extended version of Diffie-Hellman algorithm. It uses one model based on arbitrary numbers and logarithms. This is considered to provide security improvement to the communication channel and also countermeasure the attack. Also, a cloud based model is presented for engineering educational domain. Above algorithm is used in this architecture to provide more security to the user data. This architecture attains various security parameters such as confidentiality, data integrity and individualization.